# Scrapy settings for DouBan project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     https://docs.scrapy.org/en/latest/topics/settings.html
#     https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
#     https://docs.scrapy.org/en/latest/topics/spider-middleware.html

BOT_NAME = "DouBan"

SPIDER_MODULES = ["DouBan.spiders"]
NEWSPIDER_MODULE = "DouBan.spiders"

# Crawl responsibly by identifying yourself (and your website) on the user-agent
USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'

# 启用自定义扩展
EXTENSIONS = {
    'DouBan.influx.InfluxDBStatusExporter': 500,
}
# # # InfluxDB连接配置
INFLUXDB_HOST = '172.20.10.8'
INFLUXDB_PORT = 8086
INFLUXDB_DATABASE = 'scrapy_status'

EXTENSIONS = {
    'DouBan.influx.InfluxDBStatusExporter': 500,
}
# # InfluxDB连接配置
INFLUXDB_HOST = '172.20.10.8'
INFLUXDB_PORT = 8086
INFLUXDB_DATABASE = 'scrapy_status'
#
# Obey robots.txt rules
ROBOTSTXT_OBEY = False
DOWNLOAD_DELAY = 1  # 或者更高的延迟


# Configure maximum concurrent requests performed by Scrapy (default: 16)
# CONCURRENT_REQUESTS = 32

# Configure a delay for requests for the same website (default: 0)
# See https://docs.scrapy.org/en/latest/topics/settings.html#download-delay
# See also autothrottle settings and docs
DOWNLOAD_DELAY = 1
# The download delay setting will honor only one of:
# CONCURRENT_REQUESTS_PER_DOMAIN = 16
# CONCURRENT_REQUESTS_PER_IP = 16
#
# # Disable cookies (enabled by default)
# COOKIES_ENABLED = True
#
# # Disable Telnet Console (enabled by default)
# TELNETCONSOLE_ENABLED = False

# Override the default request headers:
DEFAULT_REQUEST_HEADERS = {
   "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
   "Accept-Language": "en",
}

# Enable or disable spider middlewares
# See https://docs.scrapy.org/en/latest/topics/spider-middleware.html
# SPIDER_MIDDLEWARES = {
#    "DouBan.middlewares.DoubanSpiderMiddleware": 543,
# }

# Enable or disable downloader middlewares
# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
# DOWNLOADER_MIDDLEWARES = {
#    "DouBan.middlewares.DoubanDownloaderMiddleware": 543,
# }
#
# # Enable or disable extensions
# # See https://docs.scrapy.org/en/latest/topics/extensions.html
# EXTENSIONS = {
#    "scrapy.extensions.telnet.TelnetConsole": None,
# }

# Configure item pipelines
# See https://docs.scrapy.org/en/latest/topics/item-pipeline.html
ITEM_PIPELINES = {
    # "DouBan.pipelines.RemoveNullPipeline": 299,
    "DouBan.pipelines.DoubanPipeline": 300,
    "DouBan.pipelines.MySQLDoubanPipeline": 301,
    # "DouBan.pipelines.MySQLMtimePipeline": 302
}

# Enable and configure the AutoThrottle extension (disabled by default)
# See https://docs.scrapy.org/en/latest/topics/autothrottle.html
# AUTOTHROTTLE_ENABLED = True
# # The initial download delay
# AUTOTHROTTLE_START_DELAY = 5
# # The maximum download delay to be set in case of high latencies
# AUTOTHROTTLE_MAX_DELAY = 60
# # The average number of requests Scrapy should be sending in parallel to
# # each remote server
# AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0
# # Enable showing throttling stats for every response received:
# AUTOTHROTTLE_DEBUG = False

MYSQL_HOST = '172.20.10.8'
MYSQL_DATABASE = 'scrapy_db'
MYSQL_USER = 'root'
MYSQL_PASSWORD = '111111'
MYSQL_PORT = 3306  # default MySQL port

# Enable and configure HTTP caching (disabled by default)
# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings
#HTTPCACHE_ENABLED = True
#HTTPCACHE_EXPIRATION_SECS = 0
#HTTPCACHE_DIR = "httpcache"
#HTTPCACHE_IGNORE_HTTP_CODES = []
#HTTPCACHE_STORAGE = "scrapy.extensions.httpcache.FilesystemCacheStorage"

# Set settings whose default value is deprecated to a future-proof value
REQUEST_FINGERPRINTER_IMPLEMENTATION = "2.7"
TWISTED_REACTOR = "twisted.internet.asyncioreactor.AsyncioSelectorReactor"
FEED_EXPORT_ENCODING = "utf-8"
#
SCHEDULER = "scrapy_redis.scheduler.Scheduler"

SCHEDULER_QUEUE_CLASS = 'scrapy_redis.queue.SpiderPriorityQueue'

DUPEFILTER_CLASS = "scrapy_redis.dupefilter.RFPDupeFilter"

SCHEDULER_PERSIST = True

REDIS_HOST = '172.20.10.8'
REDIS_PORT = 6379

# DOWNLOADER_MIDDLEWARES = {
#     'DouBan.middlewares.RandomProxyMiddleware': 400,
#     # ... 其他下载器中间件设置
# }